Early access for Android
Your conversations. Your keys. Your Sika.
Sika is a messenger for family, friends, work and community. Every message is encrypted on your phone. The servers that carry it cannot read it.
Start with a name. No phone number and no email required.
Market womenMade for everyday life
Family, friends, work, community and the market. Sika is for all of it.
These images are AI-generated illustrations. They are not photographs of real customers.
A messenger that works for you, not around you
Seven decisions that make Sika different.
- 01
Private by design
Messages, photos, files and call audio are encrypted before they leave your phone. Servers carry and wake. They never read.
- 02
Built for groups
Groups of up to 1,024 people with roles, announcements, mentions, polls, and invite links with QR codes.
- 03
Voice calls
Voice calls to contacts and group members, in early testing. Only people you know can ring you. Ringing a closed phone is still being built.
- 04
Files without friction
Send photos, videos, voice notes and documents up to 2 GB. Recipients see a preview first and download only what they choose.
- 05
Trade with confidence
Agree a sale in the conversation and let SikaPay escrow hold the order steps between buyer and seller.
- 06
In your language
English, Français, Kiswahili, Hausa and Arabic, with full right-to-left support. More are planned.
- 07
Made for real networks
Messages wait for a route and travel through nearby phones or the relay. Careful with your data on slow and expensive connections.
What you can do today
The early access build already feels like the messenger you know.
Reply, react, edit
Swipe a message to reply. React with any emoji, edit a message for 15 minutes, or forward it.
Voice notes
Press and hold to record, slide to cancel or lock. Pause while recording and play back at 1x, 1.5x or 2x.
Keep order
Pin chats, archive them, add your own labels, search every message, mute or block.
Stay safe
PIN lock, safety numbers to verify a contact, and an encrypted backup you can restore on a new phone.
Any screen
A layout for phones and one with the chat list beside the open chat on tablets and computers.
Your picture
Add a profile picture and an About line. Only your contacts receive them.
What is coming next
Plans, not promises. We build in this order and tell you when something is ready.
- Sign-up by phone number or email, and finding friends from your contacts.
- Video calls and group calls.
- Stories and status, channels and communities.
- Windows and Linux apps for your computer, then iPhone and Mac.
When a new feature needs our servers to know more than they do today, we say so on the Privacy Policy and Security pages before it reaches you.
What the servers can and cannot see
Sika uses servers only where a feature needs them. The rule does not change.
Never
Message text, photos, files, call audio or your keys.
As little as possible
That one key sent sealed mail to another key, its size and its time. Kept briefly, never sold.
Your decision
Feedback is optional, and the app shows exactly what accompanies it.
Try Sika today
Download the early access build for Android. Updates arrive inside the app.
Questions
Is Sika free?
The early access app is free to download and use. We will tell you plainly before anything changes.
Do I need a phone number?
No. You start with a name and a key created on your phone. Phone number and email invitations are planned as an option for finding friends.
Is there an iPhone version?
Not yet. Android comes first, and the iPhone app follows once Android is solid.
Is there a computer version?
Windows and Linux apps are being tested and are not available to download yet. The Mac app follows the iPhone app.
Is Sika on the Play Store?
Not yet. During early access you download it here, and the app tells you when a new version is ready. The Play Store follows once early feedback has shaped the product.
How do I report a problem or share an idea?
Use the feedback page or Settings inside the app. Security concerns go to our disclosure program.